# Physics

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On the way to class, you walk north and then west such that your resultant displacement is 290 m in a direction 25deg west of north. Your average velocity is 2.0 m/s in the same direction as the displacement.

• Physics -

Magnitude of displacement (vector)
=290m
velocity=2.0m/s

(a)
Walking time = distance /speed
= 290m / 2.0m/s
= 145s

(b)
Northerly distance
= 290cos(25°)
= 262.8m
Westerly distance
= 290sin(25°)
= 122.6m
Total distance
= 385.4m
Average speed
= 385.4m / 145s
= 2.66 m/s

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